qemu/hw/misc/pvpanic.c
Thomas Weißschuh 9b13640da3 hw/misc/pvpanic: centralize definition of supported events
The different components of pvpanic duplicate the list of supported
events. Move it to the shared header file to minimize changes when new
events are added.

MST: tweak: keep header included in pvpanic.c to avoid header
dependency, rebase.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Thomas Weißschuh <thomas@t-8ch.de>
Message-Id: <20240527-pvpanic-shutdown-v8-3-5a28ec02558b@t-8ch.de>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-01 17:16:04 -04:00

71 lines
1.6 KiB
C

/*
* QEMU simulated pvpanic device.
*
* Copyright Fujitsu, Corp. 2013
*
* Authors:
* Wen Congyang <wency@cn.fujitsu.com>
* Hu Tao <hutao@cn.fujitsu.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*
*/
#include "qemu/osdep.h"
#include "qemu/log.h"
#include "qemu/module.h"
#include "sysemu/runstate.h"
#include "hw/nvram/fw_cfg.h"
#include "hw/qdev-properties.h"
#include "hw/misc/pvpanic.h"
#include "qom/object.h"
#include "standard-headers/misc/pvpanic.h"
static void handle_event(int event)
{
static bool logged;
if (event & ~PVPANIC_EVENTS && !logged) {
qemu_log_mask(LOG_GUEST_ERROR, "pvpanic: unknown event %#x.\n", event);
logged = true;
}
if (event & PVPANIC_PANICKED) {
qemu_system_guest_panicked(NULL);
return;
}
if (event & PVPANIC_CRASH_LOADED) {
qemu_system_guest_crashloaded(NULL);
return;
}
}
/* return supported events on read */
static uint64_t pvpanic_read(void *opaque, hwaddr addr, unsigned size)
{
PVPanicState *pvp = opaque;
return pvp->events;
}
static void pvpanic_write(void *opaque, hwaddr addr, uint64_t val,
unsigned size)
{
handle_event(val);
}
static const MemoryRegionOps pvpanic_ops = {
.read = pvpanic_read,
.write = pvpanic_write,
.impl = {
.min_access_size = 1,
.max_access_size = 1,
},
};
void pvpanic_setup_io(PVPanicState *s, DeviceState *dev, unsigned size)
{
memory_region_init_io(&s->mr, OBJECT(dev), &pvpanic_ops, s, "pvpanic", size);
}